<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
<title>Demo_1</title>

</head>

<body>
<?php
    $a = 1;
    $b = 2;
    $c = $a;
    //$a = ++$a;
    $result = $a.$b;
?>

</body>
</html>
